Sigma 17-50mm F2.8 EX DC OS HSM test and review

The 17-50mm lenses, equivalent to the classical 24-70mm for the full frame cameras, are at the heart of Nikon, Canon, Pentax and Tamron's catalogs. But, even if all vendors are eager to offer the best high-speed wide-angle zoom for APS-C cameras, apparently Sigma managed to beat them all.

Sigma and Tamron both propose here very good high-speed wide-angle zoom with these lenses.If we would have to make a choice, for the Canon mount version, we would go for the Sigma version which offers a much higher sharpness. But, for the Nikon versions of these lenses, the test results on a D300 are so similar that the choice is be much tougher. We would have to make it a draw.

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